Elevator dispatching with balanced passenger perception of waiting

A perceived waiting time for a hall call to be answered by a car is determined as a constant times the square ( 46 ) of the summation ( 45 ) of remaining response time ( 39 ) and the amount of time that has expired since the call was registered ( 38 ). The time that may be perceived by a passenger to travel to the passenger's destination is determined as a constant times the square ( 51 ) of the distance between an estimated destination floor and the floor of the call and a constant times an estimated number of new hall stops and committed hall stops that each car will make ( 47 ). Perceived service time is ( 52 ) the sum of perceived wait time and perceived travel time. Constants are adjusted so that a long waiting time will yield a quick travel time. Assignment of calls to cars ( 60 ) is in accordance ( 61 ) with the smallest summation of square ( 59 ) of perceived service times for all waiting up calls and down calls.